Other areas were hit by hailstones as big as golf balls and there was a thunder and lightning show around the Hastings from late afternoon on Tuesday September 17.

Comboyne experienced the heaviest falls with the storm dumping 1-2cm sized hailstones on Laurieton, Kew and Kendall.

"Comboyne looked like a winter wonderland under a blanket of hail," said Nerida Hurrell.

Rebecca Armstrong from Comboyne said the hail was heavy, and it was quite scary driving home through it after 5pm yesterday.

"Unfortunately there's a bit of devastation at some for some of the farmers," she said.

Kevin Debreceny of Comboyne Avocados said they had pretty bad hail, but this year's crop is nearly finished.

"It knocked a lot of leaf off the trees. Because it's dry, the trees are over-flowering this year. We had some young trees that weren't affected. We were lucky. It was a little bit to the south of us," he said.

There were showers at Pappinbarra with some people recording 34 mm of rain. Ellenborough got 27 mm, part of Bellangry got 30 mm, Brombin got 35 mm, Rosewood residents recorded 32 mm, Timbertown in Wauchope got 24 mm, and King Creek got 19 mm.

Port Macquarie eventually got a shower and thunderstorm at about 10pm.

The Bureau of Meteorology issued a severe thunderstorm warning for parts of the Mid-North Coast on Tuesday afternoon which extended as far north as the Queensland border. The warning predicted large hailstones and damaging winds.

Inland, townships around Tamworth saw some storm activity but the rain we've all be waiting for dumped bucket loads south in the Hunter and across the Central Coast.

The Bureau has predicted a high chance of rain across the Hastings on Wednesday, September 18 - up to 10mm - with a top temperature of 23 degrees in Wauchope. Large and powerful surf conditions are expected to be hazardous for rock fishing, swimming and surfing.

Wauchope TAFE hold RU OK? Day